baber/WOPTO huggingface dataset:
Patent GB-973855-A (GB)
Title: Improvements in or relating to egg containers
IPC: B65D85/32
Filed: 1963-05-28
Abstract: 973,855. Egg cartons. BELOIT CORPORATION. May 28, 1963 [June 25, 1962], No. 21291/63. Heading B8P. A container for eggs E divided into individual compartments has a tape 35 arranged to elevate the objects when it is pulled extending into the compartments from one side and projecting upward from the opposite side. The tape 35 has pull-tabs 37 at its ends. The base member has a cover which is preferably transparent and may be flat as at 15 in Fig. 1, or may have side walls as at 27 in Fig. 3. The cover 15 (Fig. 1) has side flanges 16, 17 which engage with a flange 14 on the base 10 so that the cover may be slid with the aid of tabs 18 to open the container (or which may be lifted outward so that the cover may be lifted off). 534 The ends of the cover have downwardly turned tabs 32 (Fig. 3) which may be turned upwards for sliding the cover. The peaks 33 (Fig. 3) on the base engage with ribs 30 on the cover 27. The peaks 33 may be centrally placed as shown or may form a centre ridge which may include laterally extending ridges. The tape 35 is releasably held in the compartments by dots of pressure-sensitive adhesive 38, 39 which is either applied to the tape or to the base member before inserting the tape. Specification 945,781 is referred to.
Patent GB-991866-A (GB)
Title: Improvements in windscreen wipers
Inventor: DEAN ALFRED HENRY
IPC: B60S1/24
Filed: 1962-06-04
Abstract: 991,866. Windscreen wipers. TRICO-FOLBERTH Ltd. June 4, 1963 [June 4, 1962], No. 21485/62. Heading A4F. In a windscreen wiper system, two wiper shafts 2, 4, carry cranks 6, 8 respectively, which are directly connected by a rigid coupling link 10. The wiper motor output shaft 14 carries a crank 16 connected by an intermediate link 18 to a point on the coupling link 10, or as shown to a lug 20 thereon, in such a way that the intermediate link 18 is never inclined at more than a small angle to the coupling link 10; and that in the parked position the crank 16 on the motor output shaft 14 is in line, or nearly so, with the intermediate link 18. In the parked position, the motor shaft crank 16 and intermediate link 18 block movement of the coupling link 10 and wipers 3, 5, away from the parked position. The motor 12 may be operated by compressed air.
Patent GB-834061-A (GB)
Title: Improvements relating to packing means
IPC: B65D59/00
Filed: 1957-07-08
Abstract: 834,061. Packing pipes. BALDWIN (MANCHESTER) Ltd., J. & W., and BALDWIN, A. J. June 24, 1958 [July 8, 1957], No. 21506/57. Class 94(1). A protecting collar for the end of a metal pipe 4 is formed of wood wool 1 enclosed in fabric 2 with a metal wire 5 inserted between the wood wool 1 and the inner fabric layer with its ends protruding from the ends of the band. The ends of the wire 5 are pulled tight and a cord 6 is passed through the wrapping to hold the band in place. The ends of the band are secured together by staples 3.
Patent GB-1411435-A (GB)
Title: Setting or checking instruments for machine tools
IPC: G01B3/38
Filed: 1972-05-09
Abstract: 1411435 Measuring diameters A G WELLUM 21 March 1973 [21 March 1972 9 May 1972]  13205/72 and 21545/72 Heading G1M A tool 34, Fig. 4, rotatable about an axis 38 in an offset boring machine has its adjustable orbit 37 measured by fixed caliper paws 32 forming part of a gauging element 31 held by screws in a channel 19 of a block 17, Figs. 1-3. The block 17 is carried by blade springs 16 from a block 15a secured to a slidable magnetic base 13 and may itself slide to a limited extent so that an abutment portion 18 may operate a stylus 21 of a dial gauge 22. The base 13 may be locked to a lower magnetic base part 10 by a screw 24 and is limited in its travel thereto by a pin 14. In practice the gap between the jaws 32 is 0.001 inch smaller than the diameter of the orbit proposed for the tool 34 so that as the tool is slowly rotated it may be adjusted to abut and reciprocate the block 17 by 0.0005 inch either side of the zero on the dial gauge 22. A set of elements 3 1 of various shapes may be provided for different diameters of the orbit traced out by the tool 34 and for the other tools 35, 36, and adjustable anvils (46) may be positioned between the jaws 32, Figs. 5-7 (not shown).
Patent GB-483908-A (GB)
Title: The production of polycarboxylic anhydrides
IPC: C07C51/353
Filed: 1936-08-05
Abstract: Dicarboxylic acid anhydrides are manufactured by reacting maleic acid or anhydride or their homologues with polyterpenes of the general formula (C10H16)x, where x is two or more, until there is obtained a resinous acid anhydride whose average molecule contains more than one C10H16 terpene nucleus combined with each molecule of the original acid or anhydride. The products may be converted to the free acids by saponification and hydrolysis, e.g. by transforming them into alkali metal salts and treating these with mineral acids.  The acids and anhydrides are useful as varnish and resin making materials.  Esters imides and amides of the acids may also be prepared.  Esterification may be effected with polyhydric alcohols, the use of long chain glycols or polyglycols yielding materials useful in the manufacture of plastics or coating compositions, or as rubber substitutes, e.g. in gaskets, floor coverings or insulation.  The glycerol and glycol esters of the products may be modified with rosin, abietic acid, fatty acids or monoglycerides or glycolates of fatty acids, yielding materials useful for the production of coating and impregnating compositions or protective and decorative films, or there may be added reactive phenol- or urea-formaldehyde condensates, or vinyl, acrylic or methacrylic polymers.  In examples: (1) l-a -phellandrene is agitated with phosphoric acid and a diterpene fraction from the product is heated with maleic anhydride; (2) wood turpentine is agitated with phosphoric acid and a distillation fraction of the product is heated with maleic anhydride.  There may similarly be employed di- and polyterpenes prepared from ordinary terpenes by the action of other isomerizing and polymerizing agents, e.g. sulphuric acid, fuller's earth or stannic chloride or by other processes.
Patent GB-276337-A (GB)
Title: A process for reducing deterioration of colours of textile fabrics during washing
IPC: C11D3/386
Filed: 1927-08-16
Abstract: 276,337. Henkel et Cie Ges. Aug. 17, 1926, [Convention date]. Cleansing-compositions; soaps. - In order to prevent the running of colours of textiles and for protecting their hue in washing, urea is added to the washing liquid, which may contain soap, tryptic enzymes, oxygen-evolving detergents, soda, waterglass, &c. The urea. may be added directly or as a solution or mixture with neutral or detergent agents or with water softeners. Specifications 276,338 and 276,339 are referred to.
Patent GB-221077-A (GB)
Title: Method of and means for taking graphs of electrical variables
IPC: G01R31/25
Filed: 1923-08-27
Abstract: 221,077. Baggally, W. O. A. W. Aug. 27, 1923. Combinations of instruments; potentiometers. -An apparatus for taking graphs showing the connection between electrical variables comprises a potentiometer or the like, controlling one of the variables, mechanically connected with a movable surface on which the graph is recorded by a recording-arm controlled by the second variable. The apparatus is shown applied to plotting the characteristic curves of a thermionic valve a, the potential of the grid h of which is varied, bv a potentiometer f. The contact arm f<1> of the potentiometer is rotated by clockwork, which also rotates the drum l carrying the paper on which the graph is to be made, so that one co-ordinate is proportional to the grid potential. Co-operating with the drum l is the recording- arm k<1> of a milliammeter k which mav be alternatively connected in the anode or grid circuit of the valve a by a change-over switch g. The pointer k<1> may be caused to make intermittent contact with the drum by a chopper bar &c. operated from the clockwork motor and may be provided with a thread or siphon recorder. A two-way switch. e enables either pole of the grid battery d to be earthed at will. With this switch in the left-hand position shown in full lines, the arm f is moved over the contacts of the potentiometer from the contact 2, where the maximum negative potential is applied to the grid to the contact 1 between the contacts 24, 2 where zero potential is applied to the grid. The contact 1 is earthed through a high resistance m to avoid short-circuiting the grid battery d. The switch e is then placed in its right-hand position shown in dotted lines, and the arm f<1> applies a gradually increasing positive potential to the grid, thus completing the characteristic curve. Resistances x, y, having the same value as the resistances between adjacent studs of the potentiometer, are connected between the studs 24, 2 and the positive and negative poles of the battery d. A starting-handle which removes the brake from the clockwork is interlinked with switches d<2>, b' in the grid-battery and filament circuits respectively, so that these are simultaneouslv closed. At the end of the first revolution of the potentiometer arm f<1>, the switch e is automatically moved to its right-hand position, and at the end of the second revolution the switch e is returned to its left-hand position, the switches d<2>, b<3> are opened, and the brake is put on the motor. The starting-gear may be controlled by a Bowden wire.
Patent GB-253475-A (GB)
Title: Methods of mining
IPC: E21D23/00
Filed: 1925-08-29
Abstract: 253,475. O'Toole, E. June 13, 1925, [Convention date]. Drawings to Specification. Coal-cutting machines.-Material being mined is removed over a long wall face, while the roof is supported for a limited distance behind said face by a number of roof supports to which a constant advance movement is given at approximately the speed at which the mining progresses so as to permit the roof to settle and form a gob behind said supports. Mining may be effected by a machine as described in Specification 237,772 and the roof supported by means as described in Specification 240,115, which means may also be employed to advance the mining machine.
Patent GB-1496243-A (GB)
Title: Method of and apparatus for the handling of sheet materia
IPC: B65H15/02
Filed: 1976-06-21
Abstract: 1496243 Sheet-ordering apparatus TIMSONS Ltd 21 June 1976 [21 May 1975] 21771/75 Heading B8R Sheet elements, such as half-block book sections 25, are carried on a first conveyer 10 comprising a plurality of belts 10a to one or more laterally aligned rollers 11 each carrying two channels 13, 14 comprising limbs 17 diverging from the rollers, whereby alternate elements enter one of the series of channels 13 or 14 and are carried thereby between pivoted gate members 23a, 23b and between the rollers and an arcuate guide 19, through an arc of 180 degrees and allowed to fall on to a second conveyer 20 which carries them to a merging station 21, while the remaining elements, which do not enter the channels, force up the members 23a, 23b and pass on to a third conveyer 22 which carries them to the station 21, one of each set of elements 28, 29 being brought together on the conveyer 20.
Patent GB-677432-A (GB)
Title: Improvements in or relating to "white water" heating
IPC: D21F1/66
Filed: 1949-08-22
Abstract: 677,432. Heating white water in paper manufacture. CARRIER-ROSS ENGINEERING CO., Ltd. Aug. 14, 1950 [Aug. 22, 1949], No. 21789/49. Class 96. Hot air from the space above the drying cylinders 10 of a paper-making machine is exhausted by a hood 11, and passes through moisture-eliminating baffles 19 at the entrance to a heat-exchange chamber 13 wherein white water from a trough 15 is thrown upwardly as drops by rotating wobble-discs 20, the drops being warmed and carried to baffles 23 at 17. Further heat may be extracted from the hot air by sprays 27.
Patent GB-753637-A (GB)
Title: Merocyanine dyes containing a 2-thiohydantoin nucleus and photographic emulsion sensitised therewith
IPC: C09B23/10
Filed: 1954-07-27
Abstract: 2-Thiohydantoin derivatives of the general formula: <FORM:0753637/IV(a)/1> wherein R1 represents a substituted or unsubstituted alkyl group or a cycloalkyl group and R5 represents an acyl group are prepared by condensing a compound of formula: <FORM:0753637/IV(a)/2> with a carboxylic anhydride.  Examples are given of condensations wherein R1 is methyl, ethyl, n-octyl, cyclohexyl, benzyl and carboxymethyl and wherein the anhydride is acetic or propionic anhydride.  N1 - substituted - N - methyl thioureas wherein the substituent of the N1-atom is R1 as defined above, are prepared by condensing a compound of the formula: <FORM:0753637/IV(a)/3> wherein R7 is an alkyl group and R3 is hydrogen or an alkyl group, with a primary amine of the formula R1-NH2.  Examples are given of the condensation of N-dithiocarbethoxy glycine in alcoholic KOH with amines wherein R1 is methyl, ethyl, n-octyl, cyclohexyl, benzyl and carboxymethyl.  Specifications 344,409, 450,958, 585,707, [all in Group IV], 625,347, [Group IV (c)], and 633,874, are referred to.ALSO:Merocyanine dyes of the general formula:-<FORM:0753637/IV(c)/1> wherein R and R1 represent substituted or unsubstituted alkyl groups or R1 represents a cycloalkyl group, R5 represents an acyl group, n is 0 or 1, d is 0, 1 or 2 and z completes a 5- or 6-membered heterocyclic nucleus, are prepared by condensing a 1-acyl-2-thiohydantoin with a quaternary salt of the general formula:- <FORM:0753637/IV(c)/2> wherein R, n and Z have the meanings given above, X1 is an acid radical and D is an alkylmercapto, arylmercapto, b -arylaminovinyl or d  - arylamino - 1 : 3 - butadienyl group. R may be an alkyl group of 1-8 carbon atoms and it may contain substituents such as halogen, hydroxyl, acyloxy, carboxyl or aryl groups; thus it may be n-amyl, n-octyl, b -hydroxyethyl, b -chloroethyl, b  - acetoxyethyl, carboxymethyl, benzyl or b  - phenylethyl.  R may be ethyl or n-octyl or an alkyl group containing the substituents specified above for R; thus it may be b  - chloroethyl, b  - acetoxyethyl, carboxymethyl, benzyl or b  - phenylethyl, or it may be a cycloalkyl group of 3 to 6 carbon atoms. R5 may be acetyl, propionyl, butyryl, iso butyryl or benzoyl.  A list of nuclei which Z may complete is given, including thiazoles, oxazoles, selenazoles, 2 - and 4 - quinolines, 1 - and 3 - iso quinolines, pyridines and 3 : 3 - dialkylindolenines.  Specifications 344,409, 450,958, 585,707 [all in Group IV], 625,347 and 633,874 [Group IV(b)] are referred to.
Patent GB-517202-A (GB)
Title: Improvements in push-button switches
IPC: H03J5/32
Filed: 1938-07-22
Abstract: 517,202. Keyboard switches. PLESSEY CO., Ltd., and GILLARD, F. G. July 22, 1938, Nos. 21844, 27075 and 30596. [Class 38 (v)] A bank of switch keys in a frame are each latched on depression by a common latching bar, any previously locked being released. Each keyshank 16 is a flat bar and bears a tooth 17 projecting from a flat side co-operating with the latch bar 21. The projection preferably comprises a punched-out part of the bar. A second projection 18 may be provided to release any keys that may be pressed down simultaneously. The switch frame comprises two metal plates 10. 11 braced by cross members 12, 13. Fixed contacts 30 are mounted on separate side panels 26, for each key. Each key-shank bears an insulating carrier 31 for moving contacts, the carriers being guided in slots on the side panels and attached to the shank solely by holes fitting over studs 34 riveted &c. to the shank. The moving-contact carriers may extend lengthwise of the row of keys instead of transversely as shown. The return of the keys, under pressure of the springs 20, may be buffered by a layer of soft material against which the top edge of the contact carriers may strike. Specification 501,273, [Group XXXVI], is referred to.
Patent GB-967078-A (GB)
Title: New steroid compounds and processes for the production thereof
IPC: C07J1/00
Filed: 1961-06-16
Abstract: The invention comprises a 5b -pregnan -11- one derivative having the formula <FORM:0967078/C1/1> in which R and R1, which may be the same or different, each represent a hydrogen atom or an acyl radical derived from an organic or inorganic acid and R2 represents a hydrogen atom or one of the groups -OR1 or -CH2OR1 where R1 is the previously specified meaning, and processes for the preparation thereof by the oxidation of 3a , 21-dihydroxy -5b - pregn-17 (20)-en -11- one and the optional acylation of the oxidation product to obtain a 5b -pregn-17 (20)-ene-11, 20-dione derivative having the general formula <FORM:0967078/C1/2> (where R indicates a hydrogen atom or an acyl radical) which is reduced to yield the corresponding 5b -pregnane-11, 21-dione derivative which is then reacted in solution in a water-miscible solvent and in the presence of alkali with formaldehyde. Oxidation is preferably effected with manganese dioxide, reduction of the 17(20)-double bond is preferably effected by catalytic hydrogenation in the presence of palladinised charcoal and the treatment with formaldehyde in the presence of calcium hydroxide. From the reaction mixture so obtained there may be isolated by extraction 3a , 21-dihydroxy-20, 20-bis-(hydroxymethylene) -5b - pregnan -11- one and 3a , 21-dihydroxy -20- hydroxymethylene-5b -pregnan -11- one, which may be acylated to form the corresponding tetraacylates and traacylates respectively e.g. by nitration.  Specifications 945,503 and 967,080 are referred to.
Patent GB-665251-A (GB)
Title: Improvements in or relating to disc brakes for bicycle and motor cycle hubs
IPC: B62L3/00
Filed: 1949-08-23
Abstract: 665,251. Disc brakes for cycles. KLAUE, H. Aug. 23, 1949 [May 9, 1949], No. 21875/49. Class 103 (i). A disc brake, for cycle and motor-cycle wheels, of the type wherein two friction discs 11 and 12 are forced apart in known manner to apply the brake by means of balls 13 arranged in recesses with inclined surfaces, is arranged in an enlarged part of the wheel hub so that the discs 11 and 12, when spread apart, engage respectively a cover-plate 2 and a steel disc 3 which is pressed against the body of the hub. The brake is applied by movement of the lever 17 and driver 16 which has a dog which engages with and rotates the disc 11, preferably in a direction such that the normal forward wheel rotation increases the braking effect. The torque on the disc 12 which is slidably mounted on a bearing cone 14 is resisted by an arm 15 in engagement with the fork member 5.
Patent GB-826287-A (GB)
Title: Method for controlling the blowing operation in the conversion of steel
IPC: C21C5/30
Filed: 1957-07-11
Abstract: In the blowing operation for the conversion of steel, the amount of the phosphorus and/or manganese contained in the molten metal is estimated by extracting dust from the converter gases, determining the amount of phosphorus and/or manganese therein, and then determining from this amount the amount of phosphorus and/or manganese in the bath from the known proportional relationship between these amounts.  The extraction and determination may be effected repeatedly or continuously throughout the blow.  The analysis may be effected spectroscopically, by calorimetric or other wet-chemical method, or by non-destructive nuclear resonance spectroscopy method.
Patent GB-254670-A (GB)
Title: Improvements in internal combustion engines and methods of operating same
IPC: F01B13/06
Filed: 1925-09-03
Abstract: 254,670. Gas Turbine Corporation, (Assignees of Harper, W.). July 6, 1925, [Convention date]. Collectors.-In a revolving cylinder engine sparking plug within the valve 33 is connected to a stationary terminal 46, Fig. 3, through the clip-pin 45, ball-headed rod 44, socket 47, and rods inside the insulating sleeve 63.
Patent GB-261495-A (GB)
Title: Improvements in arrangements suitable for the reproduction, recording and transmission of sound
IPC: H04R11/00
Filed: 1925-09-04
Abstract: 261,495. Hultstr÷m, D. C. A. Sept. 4, 1925. Loud-speakers ; magneitic instruments.-In devices for reproducing, recording, and transmitting sound, the reed, armature, diaphragm or other vibrating member 7 is connected to one or more tension members 10 which limit the movement of the vibratory member towards the magnet 1. The tension member consists of a kinked or spiralled single or stranded wire, two wires with spiral springs attached, a curved spring strip, or a spring loop.
Patent GB-598015-A (GB)
Title: Improvements in or relating to loom shuttle guards
IPC: D03J1/24
Filed: 1945-08-28
Abstract: 598,015. Shuttle guards. HARGREAVES, J. S., and SCHOLES. F. Aug. 28, 1945, No. 22139. [Class 142 (iii)]. A shuttle guard comprises rods a, b connected together to form a guard rail which is pivotally mounted in brackets e on the hand rail, the rods a, b, extending beyond the bracket at the moving box end, and being bowed at a<1>, b<1> out of the plane of the guard rail to prevent upward movement of the forward end of the shuttle and also to form a recess to accommodate a tension spring f connected to a cranked rod c on the guard rail and to a projection g on the bracket for biassing the guard to the operative position, an adjustable stop d being provided to limit the pivotal movement of the guard.
Patent GB-361398-A (GB)
Title: A process for impregnating permeable substances with rubber latex or the like
IPC: D06M15/693
Filed: 1930-07-23
Abstract: 361,398. Proofing against water and mildew ; coated fabrics. HEAD, P. H., The Orchards, Station Road, Attenborough, Nottinghamshire. July 23, 1930, Nos. 22149/30 and 10447/31. [Class 140.] A process for impregnating permeable substances such as is described in Specification 316,335, [Class 140, Waterproof &c. fabrics], wherein the material is first treated in a vacuum, then with a rubber dispersion such as rubber latex while still under vacuum and the impregnation completed under pressure, is modified either by using a vulcanized latex for impregnation or by vulcanizing the product after impregnation. Suitable vulcanizing agents for incorporation with the latex are ammonium polysulphide or colloidal sulphur combined with an accelerator such as diethylamine, diethyldithiocarbamate, zinc diethyldithiocarbamate, or the material known under the registered Trade Mark " Vulcafor ZIX." Vulcanization after impregnation is effected by spraying or painting with a liquid or gaseous vulcanizing agent. The impregnated product may be painted with one or more coats of latex. Dyes, particularly water dyes, and pigments may be added to the rubber dispersion or the material may be dyed before impregnation. Para-nitrophenol or chlorinated phenol dissolved in organic bases such as the composition known under the registered Trade Mark " Preventol" may be incorporated with the latex to prevent mildew. The latex may be coagulated while wet by treatment with acids such as acetic or formic acid, followed by dipping in alkaline solutions such as ammonia and immersion in water. Stretching of the product may be performed at any subsequent time, for example after immersion for two or three days. Alternately the material, after removal from the water, may be treated with sawdust for transportation and the sawdust subsequently removed by washing with water. The process is stated to be suitable for the manufacture of textile driving belts.